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yi lei te shu ji bi guan xi de zheng ming
Author(s): 
Pages: 44-46
Year: Issue:  Z2
Journal: Required Reading for Junior Middle School Students

Abstract: <正>线段积比关系的证明是平面几何中的常见题型,但有些要证明的积比关系的所有线段都在同一条直线上,这就给证明带来困难.如果我们在解题分析中,能灵活地运用等线段代换、等线段积代换、中间比代换等技巧,这类问题就不难解决.下面举例说明.
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